Tokuç, A. 2013. Earth Summit , pp.847-854.

Tokuç, A., (2013). Earth Summit.

Tokuç, AYÇA. Earth Summit, Springer-Verlag , 2013

Tokuç, AYÇA. "Earth Summit." Springer-Verlag , 2013.

Tokuç, A. 2013. "Earth Summit." , Springer-Verlag , pp.847-854.

@encyclopedia{encyclopedia, author={AYÇA TOKUÇ}, title={Earth Summit}, publisher={Springer-Verlag }, pages={847-854} }